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如何确保在C#中只有一个程序(实例)运行?

　　解答:主要应用System.Diagnostics名字空间中的Process类来实现,思路,我们在运行程序前,查找进程中是否有同名的进程,同时运行位置也相同程,如是没有运行该程序,如果有,就将同名的同位置的程序窗口置前.
主要代码:


[C#]
public static Process RunningInstance()
{
Process current = Process.GetCurrentProcess();
Process[] processes = Process.GetProcessesByName (current.ProcessName);
//查找相同名称的进程
foreach (Process process in processes)
{
//忽略当前进程
if (process.Id != current.Id)
{
//确认相同进程的程序运行位置是否一样.
if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName)
{
//Return the other process instance.
return process;
}
}
}
//No other instance was found, return null.
return null;
}